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Maths Expert

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B Suresh Kumar

Active member
I read this in facebook but not able to do copy paste as it is in a image format.
Question in a examination

Q) Prove that 3x[SUP]2 [/SUP]y + Sin3y + Cos3x +xysinxcos3x + 3x[SUP]2 [/SUP]y[SUP]3[/SUP] + 3x[SUP]3[/SUP]y[SUP]2[/SUP] = (x+y)[SUP]2

[/SUP]Answer( L.H.S) X 0 = 0
( R.H.S) X 0 = 0
L.H.S = R.H.S

Hence proved

Marks given by the teacher

(10/10) X 0 = 0
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